16927861 has 2 divisors, whose sum is σ = 16927862. Its totient is φ = 16927860.

The previous prime is 16927843. The next prime is 16927871. The reversal of 16927861 is 16872961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14205361 + 2722500 = 3769^2 + 1650^2 .

It is a cyclic number.

It is not a de Polignac number, because 16927861 - 2¹¹ = 16925813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16927831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8463930 + 8463931.

It is an arithmetic number, because the mean of its divisors is an integer number (8463931).

Almost surely, 2^16927861 is an apocalyptic number.

It is an amenable number.

16927861 is a deficient number, since it is larger than the sum of its proper divisors (1).

16927861 is an equidigital number, since it uses as much as digits as its factorization.

16927861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 40.

The square root of 16927861 is about 4114.3481865297. The cubic root of 16927861 is about 256.7639381319.

The spelling of 16927861 in words is "sixteen million, nine hundred twenty-seven thousand, eight hundred sixty-one".